Biogeochemical Cycles

Front

What is a biogeochemical cycle?

Back

A biogeochemical cycle is the movement of elements and compounds through living organisms and the physical environment, involving biological, geological, and chemical processes.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases surrounding the Earth, which is essential for life and plays a key role in the carbon cycle.

Front

What are biotic factors?

Back

Biotic factors are the living components of an ecosystem, such as plants, animals, and microorganisms.

Front

What are abiotic factors?

Back

Abiotic factors are the non-living components of an ecosystem, such as water, air, soil, and sunlight.

Front

How does nitrogen fixation occur?

Back

Nitrogen fixation occurs when nitrogen gas from the atmosphere is converted into ammonia or related compounds, primarily by bacteria and through lightning.

Front

What is precipitation?

Back

Precipitation is any form of water, such as rain, snow, sleet, or hail, that falls from the atmosphere to the Earth's surface.

Front

What is transpiration?

Back

Transpiration is the process by which plants release water vapor into the air through small openings in their leaves called stomata.

Front

What role do plants play in the carbon cycle?

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Plants absorb carbon dioxide from the atmosphere during photosynthesis, converting it into organic matter and releasing oxygen.

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth, involving processes like evaporation, condensation, and precipitation.

Front

What is the role of bacteria in the nitrogen cycle?

Back

Bacteria play a crucial role in the nitrogen cycle by fixing nitrogen, decomposing organic matter, and converting ammonia into nitrates that plants can use.